agenttesla | d67557fd37174016e188f4e3932341f74c0a79ade0a34fbffc190e91b9e5a0e4

Analysis

max time kernel
135s
max time network
154s
platform
windows10-2004_x64
resource
win10v2004-20230220-en
resource tags

arch:x64arch:x86image:win10v2004-20230220-enlocale:en-usos:windows10-2004-x64system
submitted
08/05/2023, 21:32

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General

Target
70913520.exe
Size 1016KB
Sample230508-1dletscg97
SHA256 d67557fd37174016e188f4e3932341f74c0a79ade0a34fbffc190e91b9e5a0e4
MD5 a1908cdb9030b9c90424a139981a5ccc
SHA1 487090616098379bc4ce42130891e15bedcd748a
SHA512 fa0835bcf4c3c0eb86ffcc0672bd3290a564816ffa9fb93a9bb6d344c06aa60a78300e3552e79f8828aa29a5e70e405d3ce5b54e74224b18db481b032a7f0a0f
SSDEEP 24576:fPf9F8/brcpepwRDNrZkzU1qvzZToQYJ:wXcplLb1Yz/YJ
MD5 SHA1 SHA512 SSDEEP

Score

10^/10

agenttesla collection keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol
smtp
Host
smtp.gmail.com
Port
587
Username
[email protected]
Password
iebtzpacgzyullvo
Email to
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla

Checks computer location settings 2 TTPs 1 IoCs

Looks up country code configured in the registry, likely geofence.

Query Registry

T1012

System Information Discovery

T1082

description	ioc	Process
Key value queried	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Control Panel\International\Geo\Nation	70913520.exe

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1060

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\YLcqPJe = "C:\\Users\\Admin\\AppData\\Roaming\\YLcqPJe\\YLcqPJe.exe"	RegSvcs.exe

Looks up external IP address via web service 2 IoCs

Uses a legitimate IP lookup service to find the infected system's external IP.

flow	ioc
24	api.ipify.org
23	api.ipify.org

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4260 set thread context of 4964	4260	70913520.exe	92

Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).

System Information Discovery
T1082

Creates scheduled task(s) 1 TTPs 1 IoCs

Schtasks is often used by malware for persistence or to perform post-infection execution.

persistence

Scheduled Task

T1053

pid	Process
4244	schtasks.exe

Suspicious behavior: EnumeratesProcesses 3 IoCs

pid	Process
4260	70913520.exe
4260	70913520.exe
4260	70913520.exe

Suspicious use of AdjustPrivilegeToken 2 IoCs

description	pid	Process
Token: SeDebugPrivilege	4260	70913520.exe
Token: SeDebugPrivilege	4964	RegSvcs.exe

Suspicious use of WriteProcessMemory 14 IoCs

description	pid	Process	procid_target
PID 4260 wrote to memory of 4244	4260	70913520.exe	89
PID 4260 wrote to memory of 4244	4260	70913520.exe	89
PID 4260 wrote to memory of 4244	4260	70913520.exe	89
PID 4260 wrote to memory of 1652	4260	70913520.exe	91
PID 4260 wrote to memory of 1652	4260	70913520.exe	91
PID 4260 wrote to memory of 1652	4260	70913520.exe	91
PID 4260 wrote to memory of 4964	4260	70913520.exe	92
PID 4260 wrote to memory of 4964	4260	70913520.exe	92
PID 4260 wrote to memory of 4964	4260	70913520.exe	92
PID 4260 wrote to memory of 4964	4260	70913520.exe	92
PID 4260 wrote to memory of 4964	4260	70913520.exe	92
PID 4260 wrote to memory of 4964	4260	70913520.exe	92
PID 4260 wrote to memory of 4964	4260	70913520.exe	92
PID 4260 wrote to memory of 4964	4260	70913520.exe	92

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-144354903-2550862337-1367551827-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\70913520.exe
"C:\Users\Admin\AppData\Local\Temp\70913520.exe"
1⤵
- Checks computer location settings
- Suspicious use of SetThreadContext
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
PID:4260
- C:\Windows\SysWOW64\schtasks.exe
  "C:\Windows\System32\schtasks.exe" /Create /TN "Updates\Tjurncz" /XML "C:\Users\Admin\AppData\Local\Temp\tmp23B4.tmp"
  2⤵
  - Creates scheduled task(s)
  PID:4244
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  PID:1652
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "{path}"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4964

Network

MITRE ATT&CK Enterprise v6

Initial Access

Execution

Scheduled Task

T1053

Persistence

Registry Run Keys / Startup Folder

T1060

Scheduled Task

T1053

Privilege Escalation

Scheduled Task

T1053

Defense Evasion

Modify Registry

T1112

Credential Access

Discovery

Query Registry

T1012

System Information Discovery

T1082

Lateral Movement

Collection

Email Collection

T1114

Command and Control

Exfiltration

Impact

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Downloads

tmp23B4.tmp

Path C:\Users\Admin\AppData\Local\Temp\tmp23B4.tmp
Size 1KB
SHA256 bdd0635bea863836ec675ca15aa9082397d3f94145ef97744931aab6d42d5785
MD5 34935307c92f602dea832d99b4ef4561
SHA1 5516cd691cd1d347ca26c3a36c8e5eb52fa2f191
SHA512 4cf9d1021604a7396c340934eb74e9b86403373bf5c142f873abc1634517b62c79316e619e4fc4f08efeb8dfcaf616efbb1d02b3be480a2cd27f0ac21d7ef4da
MD5 SHA1 SHA512

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memory/4260-139-0x0000000005470000-0x0000000005480000-memory.dmp

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memory/4260-134-0x00000000050E0000-0x000000000517C000-memory.dmp

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memory/4260-136-0x0000000005220000-0x00000000052B2000-memory.dmp

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memory/4260-137-0x00000000051D0000-0x00000000051DA000-memory.dmp

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memory/4260-138-0x0000000005480000-0x00000000054D6000-memory.dmp

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memory/4260-133-0x0000000000670000-0x0000000000774000-memory.dmp

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memory/4260-140-0x0000000005470000-0x0000000005480000-memory.dmp

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memory/4260-135-0x0000000005730000-0x0000000005CD4000-memory.dmp

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memory/4964-144-0x0000000000400000-0x0000000000430000-memory.dmp

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memory/4964-146-0x00000000056D0000-0x0000000005736000-memory.dmp

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memory/4964-147-0x00000000057A0000-0x00000000057B0000-memory.dmp

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memory/4964-149-0x0000000007140000-0x0000000007190000-memory.dmp

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memory/4964-150-0x0000000007360000-0x0000000007522000-memory.dmp

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memory/4964-151-0x00000000057A0000-0x00000000057B0000-memory.dmp

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